package com.kaikeba.wx.filter;

import com.kaikeba.bean.UserExpress;
import com.kaikeba.util.UserUtil;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebFilter("/index.html")
public class UserFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpSession session = ((HttpServletRequest)servletRequest).getSession();
        UserExpress wxUser = UserUtil.getWxUser(session);
        if(wxUser != null){
            //说明有信息  放行
            filterChain.doFilter(servletRequest,servletResponse);
        }else{
            //没信息  跳转到登录页面
            ((HttpServletResponse)servletResponse).sendRedirect("login.html");
        }
    }

    @Override
    public void destroy() {

    }
}
